ImageSharp is a 2D graphics library. From 2.0.0 until 4.1.2, the TIFF CCITT Group 3 encoder allocates an undersized compressed-data buffer for narrow 1-bit images. TiffCcittCompressor.Initialize does not reserve enough space for the row data and T4 end-of-line codes, and T4BitCompressor.CompressStrip reaches unchecked writes when TiffCompression.CcittGroup3Fax is selected directly or inherited from decoded TIFF metadata. An attacker-controlled encode or decode-and-re-encode flow can write beyond the logical output span, corrupt process memory, and terminate the process. This issue is fixed in version 4.1.2.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-787"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106110.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "2.0.0"
},
{
"fixed": "4.1.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "a9498c6db3642ef92c712ebc81e706914ac16a95"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v4.1.2",
"range": [
{
"fixed": "dee414097e4be7bb35ef0209cf96bd0b61a7133a"
}
],
"source": "REFERENCES_TAG"
}
]
}